Body mass estimates of an exceptionally complete Stegosaurus (Ornithischia: Thyreophora): comparing volumetric and linear bivariate mass estimation methods. [PDF]
Biol Lett, 2015 Body mass is a key biological variable, but difficult to assess from fossils. Various techniques exist for estimating body mass from skeletal parameters, but few studies have compared outputs from different methods. Here, we apply several mass estimation
Brassey CA, Maidment SC, Barrett PM.
europepmc +11 more sources
Ankylosaurid (Dinosauria: Thyreophora) osteoderms from the Upper Cretaceous Cerro del Pueblo Formation of Coahuila, Mexico [PDF]
Carnets de Géologie, 2006 Ankylosaurian dinosaur osteoderms have been discovered in the southeastern part of the State of Coahuila, Mexico, in the township of General Cepeda, in the locality known as El Palmar.
Rivera-Sylva Héctor E. +1 more
doaj +4 more sources
Spanish Journal of Palaeontology, 2021 The La Cantalera locality has yielded the first Lower Cretaceous ankylosaurian teeth from Spain. The site is located at the Blesa Formation (Josa, Teruel). The charophyte assemblage gives an uppermost Hauterivianlowermost Barremian age to the site.
J. I. Ruiz-Omeñaca +2 more
semanticscholar +3 more sources
Long bone histology and growth patterns in ankylosaurs: implications for life history and evolution. [PDF]
PLoS ONE, 2013 The ankylosaurs are one of the major dinosaur groups and are characterized by unique body armor. Previous studies on other dinosaur taxa have revealed growth patterns, life history and evolutionary mechanisms based on their long bone histology.
Martina Stein +2 more
doaj +2 more sources
Pelvis of gargoyleosaurus (Dinosauria: Ankylosauria) and the origin and evolution of the ankylosaur pelvis. [PDF]
PLoS ONE, 2013 Discovery of a pelvis attributed to the Late Jurassic armor-plated dinosaur Gargoyleosaurus sheds new light on the origin of the peculiar non-vertical, broad, flaring pelvis of ankylosaurs.
Kenneth Carpenter +3 more
doaj +2 more sources
MIRAGAIA TAIL BIOMECHANICS AND DEFENCES. EVALUATION OF THE TAIL MOBILITY AND RESISTANCE TO LOADINGS AND COLLISIONS. [PDF]
Rivista Italiana di Paleontologia e StratigrafiaThyreophora is a taxon of dinosaurs composed of Stegosauria and Ankylosauria, whose members have been known to utilise their tails as powerful defensive weapons.
Francesco Lategano +2 more
doaj +3 more sources
Skull morphology and histology indicate the presence of an unexpected buccal soft tissue structure in dinosaurs. [PDF]
J AnatA combined approach of osteology and histology was used to examine the cheek regions of dinosaurs. Strong evidence was found for a soft tissue in this region connecting the zygoma to the mandible, here named the ‘exoparia’. Abstract Unlike mammals, reptiles typically lack large muscles and ligaments that connect the zygoma to the mandible.
Sharpe HS +7 more
europepmc +2 more sources
A new Cretaceous thyreophoran from Patagonia supports a South American lineage of armoured dinosaurs. [PDF]
Sci Rep, 2022 The early evolution of thyreophoran dinosaurs is thought to have occurred primarily in northern continents since most evidence comes from the Lower and Middle Jurassic of Europe and North America.
Riguetti FJ +2 more
europepmc +5 more sources
Limb-bone scaling indicates diverse stance and gait in quadrupedal ornithischian dinosaurs. [PDF]
PLoS One, 2012 Background The most primitive ornithischian dinosaurs were small bipeds, but quadrupedality evolved three times independently in the clade. The transition to quadrupedality from bipedal ancestors is rare in the history of terrestrial vertebrate ...
Maidment SC +3 more
europepmc +2 more sources
The phylogenetic nomenclature of ornithischian dinosaurs. [PDF]
PeerJ, 2021 Ornithischians form a large clade of globally distributed Mesozoic dinosaurs, and represent one of their three major radiations. Throughout their evolutionary history, exceeding 134 million years, ornithischians evolved considerable morphological ...
Madzia D +5 more
europepmc +4 more sources